Fountain pen



Patented Apr. 18, 1950 UNITED-STATES PATENT FJFICE 2,504,353 FOUNTAINfeEN Anthony G. Rosa, Lyndhurst, N. J.

Application October 3, 1946, Serial No. 700,923

1 claim. l

This invention relates to new and useful improvements in fountain pens,and more especially to those known as being of the ball point type.

Thus, one of the objects on my invention is to make my improved fountainpen adaptable to the use of bulk ink as well as ordinary fluid ink.

Another object of the invention is to provide a cap which is subject tomanipulation, but which at the same time will remain secured to the penin either open or closed position.

A further object of my invention is to provide specific means forseating a ball point and to provide adjustment for the latter,especially when said ball point becomes worn.

With the above and other objects in view, this invention consists of thenovel features of ccnstruction, combination and arrangement of parts,hereinafter fully described, claimed and illustrated in the accompanyingdrawings forming part of this application, and in which similarcharacters of reference indicate corresponding parts in all views, andin which- Figure 1 is a fragmentary sectional view of a fountain pen;showing a construction especially adapted to the use of fluid ink, andalso adjusting means relative to the ball point.

Figure 2 is a sectional View taken on the line 2--2 of Figure 1; WhileFigure 3 is a View similar to Figure 1, showing a modification adaptableto the use of fluid ink.

In Figure 1 is shown a construction especially adapted for the use ofliquid ink. The feed member 2da is here shown having a reduced portion5l made to receive the barrel 15a and having interposed between saidbarrel and the feed member a threaded ring 58a for securing the cap (notshown) thereto. A further reduced portion 59 of the feed member Za, ismade to receive the sack 60.

The ball insert tip 2 la is herein provided with a bore 6l to receive atubing E2, one end of which is extending into the sack El) While theother end is provided with a cut-away portion 63 to communicate with anyopening 16d formed between the feed member 20a and the ball insert tip21a.

It may be clearly seen that by compressing the sack member @Il in theconventional manner, and afterwards releasing the latter the ink will bedrawn through the opening 64 and the tubing 62 into the sack.

If this arrangement is adapted in the use of bulk ink the opening 64 andtubing 62 will serve 2 to prevent the formation of air pockets withinthe ink chamber.

The ball insert tip 21a is herein provided with the bore which at itsinner end is threaded as at 6E to receive a correspondingly threadedportion 61 of a pin 68, the latter extending into the bore 65 andengages the ball 22 by means of a shoulder 69, a screw slot 10 isprovided at the threaded end of the pin l68 by means of which the properadjustment for ball clearance may be made.

This will occasionally be necessary due to the wear and tear of the ball22 and seat 69.

The pin 68 is provided with grooves 'H to form a passage-Way from thefeed section 20a to the ball 22.

In Figure 3 is shown a modication of the disclosure in Figure 1; thus,in Figure 3 the feed member 20a is provided with an intermediate memberl2, the latter is formed with a threaded opening I3 extending into an4enlarged recess 14. The ball insert tip 2lb is provided with a reducedyportion 'I5 which latter is adapted to engage the inside diameter ofthe threaded portion 13; the member 12 is provided with an opening 16 bymeans of which ink may be drawn through the recess 14 and the threadedopening 13 into the sack 60 in any conventional manner.

It is obvious that changes may be made in the form, construction andarrangement of the several parts, as shown, within the scope of theappended claim, without departing from the spirit of the invention, andI do not, therefore, wish to limit myself to the exact constructionshown and described herein.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

In a device of the class described, in combination, a feed member, abarrel and ya sack mounted upon the feed member, a ball insert tipportion mounted in the feed member, Said tip portion and feed memberbeing on one side formed with an opening therebetween, the tip portionhaving a bore on one side thereof, a tubing arranged in said bore, saidtubing having one end extending into the sack and the other end providedwith a cut-away portion adapted to communicate with the opening betweenthe tip portion and feed member, whereby to draw ink into the sack, thetip portion having a central bore threaded at its inner end, a pinmounted in said bore, said pin having a shoulder at one end adapted toengage a ball, the other end of said Vpin being threaded in the innerend of the central boreL said pin having a slot in the threaded endthereof whereby to adjust said pin, Number the latter being formed withgrooves, whereby 2,107,424 to feed ink to the ball. 2,390,636 ANTHONY G.ROSA. 2,425,198 5 2,427,068 REFERENCES CITED 2,432,061 The followingreferences are of record in the 2,435,135 le of this patent:

UNITEDYSTATES PATENTS lo Number Number Name Date 2,939 448,937 CronkhiteMar. 24, 1891 218,660 451,808 Cooper May 5, 1891 476,971 600,299 WernerMar. 8. 1898 800,851 1,500,426 Townsend July 8, 1924 15 Name Date PlattFeb. 8, 1938 Biro Dec. 11, 1945 Moore Aug. 5, 1947 Randolph Sept. 9,1947 Chesler Dec. 2, 1947 Reynolds Jan. 27, 1948 FOREIGN PATENTS CountryDate Great Britain 1911 Switzerland 1942 Great Britain 1937 France 1930

